Improvement in the propulsion of vessels



c. P. MAcowlTzKY.

Prnpulsion of Vessels. N0. 146,009. Patented Dec. 30,1873.

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NITEn STATES PATENT @Enron CHARLES P. MACOWITZKY, OF CORPUS GHRISTI, TEXAS.

IMPROVEMENT IN THE PROPULSIOKN OF VESSELS.

Specification forming part of Letters Patent No. 146,609, dated December 30, 1873; application filed August 23, 1873.

To all whom it may concer/n:

Beit known that I, CHARLES l?. Mncow- ITZKY, of Corpus Christi, in the county of Nueces and State of Texas, have invented a new and useful Improvement in Vibrating Propellers, of which the following is a specifv cation:

Figure l is a detail longitudinal section of my improved device. Fig. 2 represents an arrangement of the device to adapt it to produce a continued action of the paddles upon the water, and for attachment to a line of boats. Fig. 3 shows the mode of pivoting or suspend ing the paddles.

Similar letters of reference indicate corresponding parts.

My invention has for its object to improve the construction of the device-for which Letters Patent No. 135,994 were granted to me February 1S, 1873, so as to make it simpler in construction, more convenient in use, more readily adjusted and controlled, and more eii'ective in operation.

The invention consists in the combination of the sleeve or socket, made smooth upon one end, and threaded upon the other, and the square rod, with the arms, the sliding frame or plate, the rack-bar, the gear-wheels or segments, and the pivoted paddles, as hereinafter fully described.

A represents the piston-rod of a steam-engine, which rod is secured to or connected with an arm, B. The arm B passes through a slot in the bottom or side of the vessel, through a slot in the sliding frame or plate G, and is rigidly attached to or formed solid upon the rackbar C. The rack-bar C is securely connected with and slides upon the plate or frame G. The teeth ofthe rack-bar() meshinto the teeth ofthe small gear-wheel or segment of a gear-wheel, D, attached to or formed upon the base of the paddle E, so that the said paddle may be projected and withdrawn by the movements of the said rack-bar (l. The paddles E are pivoted to the sliding plate or frame G, so that they may be carried back and forth by and with said frame or plate in its movements. To' the sliding plate or frame G is rigidly attached an arm, F, which projects upward parallel with and at alittle distance from the arm B. H is a sleeve 0r socket, which has a screwthread formed upon one-half of its length, and the other half is left smooth. The smooth part ofthe sleeve H passes through a smooth hole in the upper part of the arm F, and the threaded part screws into a screw-hole in the upper part of the arm. B. The sleeve H has iianges, nuts, or other stops upon its ends and center, to limit the movem ents ofthe said sleeve H in said arms B F. By this construction the arm B and rack-bar C will be iirst moved to adjust the paddles, and the rack-bar, paddles, and arms will then be moved together to make the stroke. I is a square rod, whichl passes through a square hole formed longitudinally in the sleeve H. By this construction, by turning the sleeve H by means of the square rod I, the arms B F, the sliding frame or plate G, and the rack-bar C will be so adjusted, with respect to each other and the pistonrod A, that the paddles E will be projected upon the forward or back stroke, as may be desired. The square rod I is turned to adjust the paddles E by a crank, J, a screw, or other convenient device.v

If desired, two or more sets of the arms BF, sliding frame G, rack-bar G, and paddles D E may be applied to the same boat, the arms B being connected by an endless chain, which passes around pulleys pivoted to iiXed supports attached to the boat. In this case, one of the arms B is attached to the upper part of the said endless chain, and the other to the lower part. By this arrangement oney set of paddles will be projected to operate upon the water at each movement of the piston-rod A, so as to keep a set of paddles always operating upon the water. In propelling a train of boats they are placed end to end, and in line with each other, and are connected by endless chains, which are operated by the piston, as herein before described. In this case all the boats of ing and guiding the boat or boats. The rackbar C may, if desired, be made double, so as to operate two sets of paddles. The paddles may be placed at the bottom, sides, bow, or B F, the sliding frame or plate G, the rackstern of the boat, as may be desired, or as cirbar C, gear-Wheels or segments D, and pivoted cnmstances may require. paddles E, substantially as herein shown and Having thus described my invention, I claim described, and for the purpose set forth.

as new and desire to secure by Letters Pat- CHARLES R MACOWITZKSL ent- The combination of the sleeve or socket H, Witnesses: made smooth upon one end and threaded upon J AMES T. GRAHAM, the othcr, and thc square rod I, With the arins l T. B. MOSHER. 

